MESRT Project: Monitoring the efficiency of the cooling system

MESRT Project: Monitoring the efficiency of the cooling system

Project director: Dr. Eng. Florin Teisanu (ICMET Craiova)

The main objective is complex, inter and multidisciplinary research. We develop an intelligent online monitoring and diagnostic system. It evaluates the functional parameters of the cooling system. It also accurately evaluates the efficiency of the entire thermal system. We offer a set of modern and efficient software tools. They ensure careful monitoring and correct information. They facilitate the best safe operating decisions.

The solutions offered by the project massively increase the degree of energy security. Strict supervision prevents abnormal and inefficient operation of the networks. Thus, we even avoid the destruction of high-power transformers. Cooling is achieved by forced circulation of the insulating oil. The circulation of fresh air from the environment is also ensured.

The project practically develops two major methods of analysis and monitoring. The first method involves the exact knowledge in real time of the state of the installation. We place specific sensors in the critical thermal areas of the transformer. We transmit the information on-line to a central acquisition and processing equipment. We develop a specialized software for the coordination of the hydraulic circuits in the system. We develop another software dedicated entirely to the pneumatic circuit. A separate software automatically calculates the efficiency of the entire cooling process.

The second method is absolutely and purely theoretical. This rigorously establishes the thermal field by simple analytical calculation. As input data we use the oil temperature at the top of the tank. We also use the phase load represented by the electric current in the network. The thermal time constant specific to each massive construction is taken into account.

• Developing new testable methods for increasing cooling efficiency.
• In-depth study to substantiate the structure of an intelligent system.
• Development of procurement programs for the oil cooling circuit.
• Development of the program package for analyzing the efficiency of the ensemble.
• Creation of a functional model of a mini intelligent monitoring system.
• Development of the theoretical method for the analytical determination of the thermal field.
• Dissemination of results in the national and international academic environment.

The system is dedicated to the main companies in the National Energy System (SEN). These include Transelectrica SA, Electrica SA, Hidroelectrica SA and Termoelectrica SA. It is ideal for large manufacturers of power transformers and autotransformers. It also targets SME-type enterprises producing radiators or electric pumps. The project provides them with precise data, collected from operation, for product improvement.

• We quickly identify the optimal conditions for economic loading of SEN networks.
• We clearly minimize the enormous risks of premature failure of vital equipment.
• We estimate the remaining lifespan and intelligently plan decommissioning.
• We extend life through correct and very cost-effective strategies.
• We significantly minimize long-term and very long-term operating costs.
• We eliminate unplanned maintenance and drastically minimize unwanted downtime.
• We look for hidden data to intelligently predict the future behavior of systems.
• We effectively avoid huge ecological disasters and ensure environmental conservation.

Document description	Download
Stage I (2008) – Foundation of the structure of a smart monitoring system for power transformer cooling	Download PDF
Stage II.1 (2009) – Elaboration of functional model (Activities II.1, II.2)	Download PDF
Stage II.2 (2009) – Elaboration of functional model (Activities II.3, II.4)	Download PDF